Mine explosion

Rescue workers are seen at a coal mine following an explosion in China on April 1. The blast in the central China mine, which has killed 12 people and left 32 workers missing, comes just days after an accident at a mine in Shanxi province. (Photo by ChinaFotoPress/Getty Images)

Rescue workers are seen at a coal mine following an explosion in China on April 1. The blast in the central China mine, which has killed 12 people and left 32 workers missing, comes just days after an accident at a mine in Shanxi province. (Photo by ChinaFotoPress/Getty Images)